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    <a href="../index.html">cppreference.com</a> &gt; <a href=
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  <div class="name-format">
    if
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    Syntax:
  </div>
  <pre class="syntax-box">
  if( conditionA ) {
    statement-listA;
  }
  else if( conditionB ) {
    statement-listB;
  }
  ...
  else {
    statement-listN;
  }
</pre>

  <p>The if construct is a branching mechanism that allows different
  code to execute under different conditions. The conditions are
  evaluated in order, and the statement-list of the first condition to
  evaluate to true is executed. If no conditions evaluate to true and
  an <a href="else.html">else</a> statement is present, then the
  statement list within the else block will be executed. All of the
  <a href="else.html">else</a> blocks are optional.</p>

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    Related topics:
  </div>

  <div class="related-content">
    <a href="else.html">else</a><br>
    <a href="for.html">for</a><br>
    <a href="switch.html">switch</a><br>
    <a href="while.html">while</a>
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